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12th West Bengal Board

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Three charges $- q_{1}, + q_{2}$ and $- q_{3}$ are placed as shown in the figure, Fig. $2.110$ ? The $X$ -component of the force on $- q$ is proportional to

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Important Questions on Interaction of Charged Particles, Electric Field and Potential

MEDIUM

12th West Bengal Board

IMPORTANT

A Text Book of PHYSICS PART 2 : CLASS 12>Chapter 2 - Interaction of Charged Particles, Electric Field and Potential>EXERCISE 2>Q 13

A point

Q

lies on the perpendicular bisector of an electric dipole of dipole moment

p

. If the distance of from the dipole is

r

(much larger than the size of the dipole), then the electric field at

Q

is proportional to

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12th West Bengal Board

IMPORTANT

A Text Book of PHYSICS PART 2 : CLASS 12>Chapter 2 - Interaction of Charged Particles, Electric Field and Potential>EXERCISE 2>Q 14

The electric potential at the surface of an atomic nucleus

(Z = 50)

Of radius

9.0 \times 10^{- 15} m

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12th West Bengal Board

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A Text Book of PHYSICS PART 2 : CLASS 12>Chapter 2 - Interaction of Charged Particles, Electric Field and Potential>EXERCISE 2>Q 15

An electric dipole of moment

p

is placed in the position of stable equilibrium in a uniform electric field of intensity

E

. The torque required to rotate, when the dipole makes an angle

θ

with the initial position is -

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12th West Bengal Board

IMPORTANT

A Text Book of PHYSICS PART 2 : CLASS 12>Chapter 2 - Interaction of Charged Particles, Electric Field and Potential>EXERCISE 2>Q 16

If a charge is moved against the coulomb force of an electric field -

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12th West Bengal Board

IMPORTANT

A Text Book of PHYSICS PART 2 : CLASS 12>Chapter 2 - Interaction of Charged Particles, Electric Field and Potential>EXERCISE 2>Q 17

Torque acting on electric dipole of dipole moment

\vec{p}

placed in uniform electric field

E

is -

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12th West Bengal Board

IMPORTANT

A Text Book of PHYSICS PART 2 : CLASS 12>Chapter 2 - Interaction of Charged Particles, Electric Field and Potential>EXERCISE 2>Q 18

The work done in carrying a charge

Q

once round the circle of radius

r

with charge

Q

at the centre of the circle is -

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12th West Bengal Board

IMPORTANT

A Text Book of PHYSICS PART 2 : CLASS 12>Chapter 2 - Interaction of Charged Particles, Electric Field and Potential>EXERCISE 2>Q 19

In the electric field of a point charge $q$ , a certain charge is carried from $A$ to $B, C, D, E$ in Fig. $2.111$ . Then the work done

Question Image

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12th West Bengal Board

IMPORTANT

A Text Book of PHYSICS PART 2 : CLASS 12>Chapter 2 - Interaction of Charged Particles, Electric Field and Potential>EXERCISE 2>Q 20

A dipole of electric dipole moment

\vec{p}

is placed in a uniform electric field of strength

\vec{E}

. If

θ

is angle between

\vec{p}

and

\vec{E},

then potential energy of the dipole becomes largest, when

θ

is -

Three charges -q1,+q2 and -q3 are placed as shown in the figure, Fig. 2.110? The X -component of the force on -q is proportional to

Important Questions on Interaction of Charged Particles, Electric Field and Potential

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Three charges $- q_{1}, + q_{2}$ and $- q_{3}$ are placed as shown in the figure, Fig. $2.110$ ? The $X$ -component of the force on $- q$ is proportional to